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vmemmap_free() callsites (mm/sparse.c) and declaration (include/linux/mm.h) are protected with CONFIG_MEMORY_HOTPLUG. This function is not required if CONFIG_MEMORY_HOTPLUG is not enabled. Hence move the config wrapper outside the function definition. Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Link: https://lore.kernel.org/r/1621842030-23256-1-git-send-email-anshuman.khandual@arm.com Signed-off-by: Will Deacon <will@kernel.org>